Printing and stamping machine



June 23, 1931. R. F. JAHN PRINTING AND STAMPING MACHINE Original FiledApril 13, 1927 2 Sheets-Sheet l XMJ MY WAY! m8 JAHOITAM 1a! A TTO NEYIJune 23, 1931. R. F. JAHN PRINTING AND STAMPING MACHINE- Original FiledApril 15, 1927 2 Sheets-Sheet 2 mvN Q //NVN TOR A TTO v5 V;

Patented June 1931 Ian-mourn F. Jinan, or

ATEN'E o bas cs BROOKLYN, new YORK rRINTING Ann STAMPING MacrameOriginal application filed April 13, 1927, Serial No. 183,318. PatentNo. 1,744,770, dated January 28, 1930.

" Divided and this application filed This invention relates toimprovements in printin and stamping machines, and has particu' arreference to "such devices which are adapted for endorsing, cancelling,or oth- {6 erwiseprinting upon bank checks, tickets, letters, andsimilar articles. I a;

The subject matter of thisinvention is disclosed in "my co-pendingapplication for printing and stamping machines, filed April 10 13, 1927,Serial N 0. 183,318 but is not claimed therein, the' presentapplication being a d1- vision of the said, application Serial-No.183,318. t r V In theabove identified co -pending application, theinvention hasbeen embodied in a' machine which is power-driven andcapable of expeditiously operating upon a quantity of successively fedpaper sheets or likear ticles asthey are passed through a-printing'couple. This printing couple comprises an impression roller andaprinting roller, and

7 one ofthe objects of thepresent invention is to provide a simple andefiicient driving connection for the printing'couple, whereby theprinting roller will be automatically rotated through a single completerevolution each time a check or other paper sheet is presented to it.For this purpose the printing roller is driven through-a clutch, andcontrolled by atripping mechanism which is actuated by the entering edgeof a presentedcheck. The printing roller is normallyjheld againstrotation by virtue of the engagement'of a stop lever with'a fixedabutment, the stop lever being pivoted oni one end of the printingroller. A trip lever is also associated with the printing roller andstopjlever, andis disposed in the path of the entering edge of thepresented check so as to be actuated therei by, to release the stoplever and permit rota tion of the printing roller. The clutch has aportion associated with the intermittently rotatable printing roller,andanother portion associated with a constantly rotatable feed roller,whichis driven byaworm and worm gear from an electric motor. The motorshaft and worm are connected together by a flexible coupling, and theprincipal rotating parts arejournaledinanti friction bearings June-22,1929. Serial No. 372,822; I 1

whereby theirf operation will be exceedingly l i V Fig; 2'is afragmentary vertical longitudinalsectional view through the device,showing thedrive shaft coupling, gearing, and clutch; V a

Fig. 3 is a vertical sectional view-on line 3-3 of Fig. 1 showing thenormal position of the parts of the tripping mechanism, ready foroperation; and a j Fig. 4 is a similar fragmentary view of the trippingmechanism after the printing roller has been released.

, The invention has been shown as embodied 1 in amachine for endorsingbank checks, and in. the following description, when bank checks arespecified in connection with the operation of the device, it is to beunderstood that their equivalents ma'y be operatedupon in the same way.The device comprises a substantially flat base plate A of rectangularoutline and preferably having a plurality of cushion feet A whereby tobe supported upona desk, table or the. like without likelihood ofdamaging the surface thereof, Secured to the baseplate A intermediateits ends is a supporting bracket A having a pair of upwardly extendingspaced arms A and A said arms being disposed adjacent the opposite sideedges of the base plate. Also integral with the bracket A and extendingupwardly; therefrom, between said arms A and A isa shorter arm A, whichsupports certain portions of theinechanism' as will hereinafter beexplained. Adjacent their upper ends, the arms A and A are provided withhearing bosses A and A respectively, having axially alined openings Aand A in which are secured stationary mounting shafts A and A the innerends of which are spaced from each other to rotatably support a printingroller B of the printing couple.

The printing roller B is built up of several parts, and includes arelatively thin walled cylindrical shell formed of semi-cylindricalsections supported at their opposite ends by disks B and B, which arerespectively formed with outwardly extending hub portions B and B asbest shown in Fig. 1. One of the semi-cylindrical sections of theprinting roller is preferably detachable, and'provided on its outersurface with a printing or stamping die B having the desired legends Bwhich together with changeable type elements B are used for printingupon checks or other sheets as they are successively passed through themachine. Since the structural details of this roller do not form a partof this invention, a more complete description of it is unnecessary.

Mounted upon the hub portion B of the mounting disk B is a ball bearingB against the outer race of which rests one end portion of an impressionroller B, said impression roller being yieldably held in parallelrelation to the printing roller B and having its other end portionengaging against a feed roller C The feed roller C is coaxial with theprinting roller-B and adapted to be intermittently connected therewithto rotate said roller B, and is itself rotatable on anti-frictionrollers C on the mounting shaft A Secured to the outer side of the feedroller C, as by screws C is a worm gear C which meshes with andis drivenby a worm C on a shaft C, said shaft being journaled in ball bearings atC in a bracket C The bracket C is suspended on the mounting shaft A asbest shown in Figs. 1 and 2, and secured thereto by a set screw C, andthe shaft G extends in a direction transverse to that of the axis of theprinting roller, and forwardly beyond the bracket C for connection to adriving shaft C of a motor C The shafts C and C are substantiallycoaxial and connected together by a flexible coupling C, which has beenshown as comprising a pair of disks C and C secured to the respectiveshafts C and C and an intermediate disk C of flexible material. Thedisks 0 and C are each provided with a pair of diametrically opposedapertures C and said. apertures of the respective disks are disposed atright angles (Fig. 2). The intermediate disk C is provided with fourapertures C, apart, and is connected to the disk C by a U shaped pin Cand to the disk C by a similar U shaped pin C The motor C may be of anydesired type, and is secured by screws to the main base A and isfurnished with electric current through a suitable conduct-or, andcontrolled by a manually operable switch not shown.

Novel means are employed for connecting the feed roller C with theprinting roller B whereby to intermittently rotate the latter onerevolution at a time, said means including a clutch and a trippingmechanism. The clutch comprises a pair of semi-circular jaws D and Dprovided on their inner surfaces with suitable friction material D forengagement against the periphery of a clutch collar D which is carriedby the printing roller hub The jaws D and D are disposed within a recessC in the inner end of the feed roller C and are secured thereto byclamping between a pair of parallel pins D which are secured to saidfeed roller C The opposite ends of the jaws D and D have outwardlyextending lugs D and D which are apertured for the reception of a screwD said screw being fitted with a nut D against the outer side of the lugD and having a spring D between the screw head I) and the outer side ofthe lug D The spring D is under compression whereby to normally forcethe lugs D and D toward each other, and thereby cause the desiredfrictional engagement of the clutch lining D with the clutch collar 1),and in such condition the printing roller B will be caused to rotatewith the feed roller C provided said printing roller is not otherwiseheld against rotation. The spring D provides a cushioning effect againstthe tightening of the screw D and also restrains said screw from turningloose.

Mounted upon the upper end of the stationary bracket arm A and insubstantially vertical alinement with the axis of the printing roller,is a stop wheel D, which may preferably be rotatable upon a screw DCarried by the printing roller and pivoted to the mounting disk B at Dis a stop lever D having at its free end a roller D which is adapted tonormally abut against the roller D and thus prevent-rotation of theprinting roller. The stop lever D has its free end normally forcedoutwardly by a compression spring D which is partially disposed in arecess D in the hub portion B and at its other end said stop lever isprovided with an arm D formed at its extremity with a shouldered notchI). Also pivoted to the disk B as at D, is a trip lever B, which has atooth portion D adapted to engage in the notch D to maintain the stoplever in its outermost position as shown in Fig. 3. The trip lever D isunder the influence of a tension spring D which has one of its endsconnected to said trip lever at D and its other end anchored to theroller disk B at D, said spring normally maintaining the tooth D in thenotch D Extending outwardly from the trip lever D is a finger portionD", said finger portion extending beyond the periphery of the printingroller B and into a groove B in the impression roller B Bank checks orother similar articles are presented to the printing couple in the usualmanner and are drawn inwardly'by the constantly rotatinggfeed roller 0and the, im-

rotation continues to the point where the rollers D and I) becomedisengaged, the spring D again forces the free end of the stop lever Boutwardly, and thereafter the finger D becomes disengaged from theentering edge of the check, permitting the return of the tooth 1) intothe notch D The printing roller continues to rotate until it is againarrested by the abutment of the locked lever D with the stop roller Dovercoming the frictional grip of the clutch jaws D and D on the collarD and permitting subsequent slippage of said clutch jaws around thecollar. This operation is repeated as each successive check is insertedandthe checks are printed upon as they pass between the rollers B and Bof the printingco-uple. Be-

cause of the fact that the trip lever and the stop lever areindependently pivoted upon the end of the printing roller the pressurerequired for releasing or tripping the mechanism' will be very slightand therefore it can easily be accomplished with a thin piece of paperwithout injury to the same.

In using the device, the proper die plate" and interchangeable type areplaced in position, and the motor C is set in motion. Quick drying inkis supplied to the printing roller from an ink well F by distributing Asthe motor shaft C rotates, the power is transmitted through the flexi lejoint 0, shaft C worm C and rollers F and F worm gear C, to the feedroller C and the impression roller B is caused to rotate in the oppositedirection by virtue of its contact with the periphery of said feedroller. The

printing roller B, however, is normally held against rotation by theabutment of the roller D with the stop member D the clutch 1 clutchcollar D jaws D and D freely slipping around the tween the rotating feedroller C and the lmpresslon roller 13, and are CZLIIlQCl rearstriklngthe trip the clutch jaws D and D take hold'of the collar 1) and rotatethe printing roller one revolution for each check. Thus the checks areendorsed or otherwise printed upon, and are successively delivered to asuitable receiving and stacking means rearward of the printing couple.The machine is very easy running, quiet, rapid, free from vibration andcompact, and the trip mechanism is so As the checks to be 'en; .dorsedare fed, one at a time, through the printing couple, they are seized byand belever sensitiveastobe actuated the edge of 'rollerand adapted tonormally engage against said fixed stop, and a trip lever in dependentlypivoted on the roller, said trip lever and stop lever having mutuallyengaging means for maintaining the stop lever in its normal position. i5 2. A machine of the class described, comprising a printing roller, afixed stop adjacent the roller, a stop lever pivoted on the roller andhaving a free end adapted to engage the fixed stop. atripleverindependently pivoted onthe roller, and means'associated withthe trip lever for normally maintaining the stop lever in engagementwith the fixed stop. i

printing roller, a fixed stop adjacent one end of the roller, a stop.lever pivoted on the adjacent end of the roller and having a free endadapted to normally engage the fixed stop to prevent rotation of theroller, a latch arm associated with the stop lever, a trip lever alsopivoted on the end of the roller, and means movable with the trip leverfor releasably holding the latch arm to'prevent intermittently rotatableroller, and a tripping mechanism carried by the roller for coni trollingthe rotation thereof, said tripping mechanism comprising a stop leverpivoted on theroller, a fixed stop adjacent to the roller for engagementby the stop lever, and a trip lever independently pivoted on the rollereccentrically with reference to the stop lever, the trip lever and thestop lever having mutually engaging means for releasably holding thestop lever against the fixed stop to prevent rotation of the roller, thestop over and disengage the fixed stop when said mutually engaging meansare released.

5. In a machine of the class described, an intermittently rotatableroller, and a tripping mechanism carried by the roller for controllingthe rotation thereof, said tripping mechanism comprising a stop leverpivoted On the 'roller, a fixed stop adjacent to the rollerforengagement by the stoplever, and

3. In a machine offthe class described, a

being adapted to automatically pass a trip lever independently pivotedon the roller eccentrieally with reference to the stop lever, the triplever and the stop lever having mutually engaging means for releasablyholding the stop lever against the fixed stop to prevent rotation of theroller, the stop lever being adapted to automatically pass over anddisengage the fixed stop when said mutually engaging means are released,and means for automatically reengaging said releasable holding meansafter the stop lever has passed over the fixed stop.

6. In a machine of the class described a printing couple including apair of, opposed rollers, tripping mechanism carried by one of therollers, a fixed stop adjacent said rollers, and means including aclutch for rotating the rollers, the tripping mechanism comprising astoplever pivoted on the roller, a trip lever independently pivoted on theroller, and mutually engaging means carried by the stop lever and thetrip lever to releasably maintain the free end of the stop lever in thepath of the fixed stop, a. portion of the trip lever being disposed inthe path of a sheet fed through the printing couple and being operatedthereby to release the stop lever.

In testimony whereof, I have aliixed my signature hereto.

RAYMOND F. JAHN.

